Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 51, NWS Lake Charles, LA

April 23, 2021Jasper County, Tyler County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Apr 23, 2021, 4:47 PM CDT for Jasper County, Tyler County, Texas. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 23, 2021, 4:47 PM CDT (21:47 UTC)
Expired
Apr 23, 2021, 5:15 PM CDT
In force
28 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Tornado
Possible
Hail
0.88 in
Wind
60.0 mph

Counties Jasper County, TX, Tyler County, TX

The radar

The Ft Polk radar (KPOE), 146 km from the middle of the area, began a volume at 21:48 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 23, 2:00 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 9.8 hours before the alert went out and 158 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Lake Charles Mun, LA at 12:00Z on 2021-04-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 12 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lake Charles Mun, LA at 12:00Z on 2021-04-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 373 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
12 J/kg
Mixed-layer CIN
-108 J/kg
Mixed-layer LCL
523 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
373 m²/s²
0-3 km storm-relative helicity
419 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

846 
WUUS54 KLCH 232147
SVRLCH
TXC241-457-232215-
/O.NEW.KLCH.SV.W.0051.210423T2147Z-210423T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lake Charles LA
447 PM CDT Fri Apr 23 2021

The National Weather Service in Lake Charles has issued a

* Severe Thunderstorm Warning for...
  Northwestern Tyler County in southeastern Texas...
  Northwestern Jasper County in southeastern Texas...

* Until 515 PM CDT.

* At 447 PM CDT, a severe thunderstorm was located near Colmesneil,
  moving northeast at 55 mph.

  HAZARD...60 mph wind gusts and nickel size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Colmesneil, Chester and Rockland. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 900 PM CDT for southeastern
Texas.

For your protection move to an interior room on the lowest floor of a
building.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 3105 9458 3106 9453 3105 9449 3103 9447
      3110 9411 3076 9449 3085 9462 3098 9465
TIME...MOT...LOC 2147Z 223DEG 49KT 3095 9450 

TORNADO...POSSIBLE
HAIL...0.88IN
WIND...60MPH
 
$$

Stigger/87
1 follow-up statement
360 
WWUS54 KLCH 232206
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
506 PM CDT Fri Apr 23 2021

TXC241-457-232215-
/O.CON.KLCH.SV.W.0051.000000T0000Z-210423T2215Z/
Tyler TX-Jasper TX-
506 PM CDT Fri Apr 23 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CDT
FOR NORTHWESTERN TYLER AND NORTHWESTERN JASPER COUNTIES...

At 506 PM CDT, a severe thunderstorm was located 10 miles northwest
of Ebenezer, moving northeast at 55 mph.

HAZARD...60 mph wind gusts and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Colmesneil, Chester and Rockland. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 900 PM CDT for southeastern
Texas.

For your protection move to an interior room on the lowest floor of a
building.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3103 9447 3110 9411 3076 9449 3085 9462
TIME...MOT...LOC 2206Z 223DEG 49KT 3114 9429 

TORNADO...POSSIBLE
HAIL...0.88IN
WIND...60MPH
 
$$

Stigger/87

The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 23, 2:35 PM CDTRiver Flood WarningLCHNewton4 days
Apr 23, 2:35 PM CDTRiver Flood WarningLCHNewton, Orange76 days
Apr 23, 2:50 PM CDTFlash Flood WatchLCHJasper, Newton, Tyler12 hr
Apr 23, 4:27 PM CDTSpecial Weather StatementLCHSabine33 min
Apr 23, 4:31 PM CDTSpecial Weather StatementLCHTyler29 min
Apr 23, 5:12 PM CDTSevere Thunderstorm WarningLCHJasper, Tyler63 min
Apr 23, 6:08 PM CDTSevere Thunderstorm WarningLCHJasper, Newton67 min
Apr 23, 6:42 PM CDTSevere Thunderstorm WarningLCHHardin, Jasper, Newton, Tyler63 min

Nearby

Severe Thunderstorm Warnings in Texas, 2021Every severe thunderstorm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.